Sister Bhaginisutta

At Sāvatthī. Sāvatthiyaṁ viharati …pe…

“It’s not easy to find a sentient being who in all this long time has not previously been your sister. … “na so, bhikkhave, satto sulabharūpo yo nabhaginibhūtapubbo …pe… This is quite enough for you to become disillusioned, dispassionate, and freed regarding all conditions.” alaṁ vimuccitun”ti.